Window screen



y 30, 1944- J. M. LAPINA 2,350,395-

WINDOW SCREEN Filed July 27, 1945 9% I I 2 f6 12 11 1g 17 INVENTOR. r/afl/v M. L APl/VA ATTORNEK Patented May 30, 1944- UNITED STATES PATENT OFFICE WINDOW SCREEN John M. Lapina, Brooklyn, N. Y.

Application July 27, 1943, Serial No. 496,289

6 Claims. (Ql. 16084) This invention relates to window screens.

It is the primary object of thi invention to provide a collapsible and removable window screen comprising an accordion pleated sheet of specially prepared paper secured to a plurality of supporting bars of wood which are held in spaced apart relation by a pair of pivoted wood links, so arranged relative to each other and to the supporting bars, that when moved together the screen will be collapsed and when separated the screen will be extended for use, the paper making up the screenbeing suitably perforated in the pleats thereof. 1 With the foregoing and other objects in view, the invention resides in the novel arrangement and combination of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of the invention.

A practical embodiment of the invention is illustrated in the accompanying drawing, wherein- Figure 1 shows the paper screen placed in position in a window frame opening as viewed from the inside of the room.

Figure 2 is an elevational view of the paper screen as extended ready for use.

Figure 3 is an end elevational view of the ex- Referring to the drawing in detail, 5 denotes I a conventional window frame including upper and lower window sections which may be raised or lowered in the manner well known. Placed in position between the raised lower window section and the sill of the window frame is a collapsible paper screen I embodying the novel features of the invention, the screen being viewed from the inside of the room.

The screen I0 comprises a bottom support bar II, an intermediate support bar I2, and a top support bar I3 which may be formed of any suitable material, preferably wood. The bars are rectangular in cross-section and of uniform width, thickness and length; the length being such as to extend between the opposed sides of the window frame 5, for placement preferably in the window channels thereof.

Interconnecting the support bars II, I2 and I3 are connecting links I and I5 which may be of any suitable material, preferably wood. The links I5 and I5 are eachpivotally secured at their lower ends to the lower support bar I! at points adjacent the ends thereof, by means of pivot pins I1 and I8, respectively. The intermediate support bar I2 and the top support bar I3 are each provided with a pair of longitudinally extending slots and 21, respectively, arranged symmetrically on each side of the vertical center of said bars, with the slots 20 of a less length than the slots 2| and with the outer ends of said slots in substantially vertically aligned relation. Guide pins 24 and 25- are pivotally connected to the links I5 and I6, for sliding movement, respectively, in the slots 2-0 and 2 I. Preferably the pins 24 and 25, should be of such dimensions as to have a frictional sliding engagement in their associated slots, whereby for any position of adjustment of the links the same will be held therein relative to-the support bars I2 and I3. If desired the pins 24 and 25 may have threaded ends to receive wind nuts thereon for clamping the links to the support bars in adjusted position. The length of the links I4 and I5 and slots 20 and 2I are so co-related that the support bars II, I2 and I3 will contact each other when the links are drawn together to their maximum extent, this being the fully collapsed position of the screen I0. With the links I4 and I5 separated their maximum extent, the screen will be fully extended.

Appropriately secured as by tacking, gluing or cementing '(not shown) to the support bars II, 12 and I3 on the side thereof opposite the links I4 and I5 is a paper screen folded into horizontal rows of pleats 3|, 32 so as to provide an accordion effect. The paper screen 30 is made of a suitable, tough, water-proof paper of a requisite degree of stiffness and strength suitable for the purpose intended. Provided in the pleats 3I and 32 are perforations 33 of any desired shape or size. The intermediate support bar I2 is secured to the paper screen 30 along the horizontal center line thereof so as to be always equally spaced from the lower and top support bars.

When placed in a window opening the screen I0 is positioned with the paper screen 30 facing the outside. The links I4 and I5 further function to prevent inward bending or billowing of the paper screen 30 in the event the wind blows into the room.

Having thus described the invention, What is claimed is:

1. A collapsible and removable window screen comprising a plurality of support bars, a plurality of links pivotally connected to one of said support bars and having a sliding connection with the remainder of said support bars, and a horizontally pleated collapsible paper screen attached to said support bars, in the collapsed position of the screen said support bars engaging each other and in the extended position of said screen said support bars being disposed and held by said links in horizontally spaced relation.

2. A collapsible and removable window screen comprising a plurality of support bars, a plurality of links pivotally connected to the lower,- most one of said support bars and having a sliding connection with the remainder of said sup-" port bars, and a horizontally pleated collapsible paper screen attached to said support bars, in the collapsed position of the screen said support bars engaging each other and in the extended position of said screen said support bars being disposed and held by said links in horizontally spaced relation, and a row of perforations formed in each of said pleats.

3. A collapsible and removable window screen comprising a plurality of support bars of equal length, a plurality of links of equal length pivotally connected to the lowermost one of said support bars and having a sliding friction connection with the remainder of said support bars, and a horizontally pleated collapsible paper screen attached to said support bars, in the collapsed position of the screen said support bars engaging each other and in the extended adjusted position of said screen said support bars being disposed and held by said links in horizontally spaced relation, and a row of perforations formed in each of said pleats.

4. A collapsible and removable window screen comprising a plurality of support bars of equal length, a plurality of links of equal length pivotally connected to the lowermost one of said support bars and having a sliding friction connection with the remainder of said support bars,

and a horizontally pleated collapsible paper screen attached to said support bars on the side thereof opposite that engaged by the links, in the collapsed position of the screen said support bars engaging each other and in the extended adjusted position of said screen said support bars being disposed and held by said links in horizontally spaced relation, and a row of perforations formed in each of said pleats.

5. A collapsible and removable window screen comprising a lower, an intermediate and a top support bar, a pair of links each pivotally con 3 nected to the lower support bar at points adjacent the ends thereof, a pair of longitudinally a horizontally pleated perforated collapsible paper screen attached to said support bars, in the collapsed position of the screen said support bars engaging each other with the links inclined towards each other and in the extended adjusted position of said screen said support bars being disposed andheld by said links in horizontally spaced relation with said links approaching a substantially vertical'position.

6. A collapsible and removable window screen comprising-a lower, an intermediate and a top support bar, a pair of links geach pivotally connected to the lower support bar at points adjacent the ends thereof, -a pair of longitudinally spaced slots formed in each of the other of said support bars, guide meanson said links having frictional sliding engagement in said slots, and a horizontally pleated perforated collapsible paper screen attached to said support bars on the side thereof opposite that engaged by the links, in the collapsed position of the screen said support bars engaging each other-with the links inclined towards each other and in the extended adjusted position of said screen said support bars being disposed and held by said links in horizontally spaced relation with said links approaching a substantially yerticalposition, said perforations being formed in each of said pleats.

' JOHN'M. LAPINA. 

